At Which Price Does the Retailer Maximize Total Sales Revenue

Multiple Choice

At which price does the retailer maximize total sales revenue? Selling Price Quantity Demanded
(in $ ) (in units)
$5) 00 12,000
$6) 00 9,500
$7) 00 8,700
$8) 00 7,000

A) $5.00
B) $6.00
C) $7.00
D) $8.00